Improvement in bolts for safe-doors



UNITED STATES.

PATENT OFFICE.

JA'MES SARGENT, OF ROCHESTER', NEW YORK.

IMPROVEMENT IN BOLTS FOR SFE-DOORS.

Specification forming part of Letters Patent No. 85,24 6, dated December-22, 1863.

CASE B.

Figure l is a view of my improvement inthe sti' position of the rock-arm; Fig. 2, a View Of.the operating parts in the flexible position of the rock-arm.

Like letters of reference indicate correspond ing parts in both figures.

My invention consists in a connection of parts between the heavy bolt-work and the locks, whereby the said bolt-work may be set to open by the action of one lock or both, as hereinafter set forth.

In the drawings, A indicates the ordinary heavy bolt-work of a safe door, which shoots out to connect with the jamb of the safe to hold the parts closed, the parts B B showing simply the bearings of the door, in which the holt-work rests to retain it in place.

To the vertical bar c of the bolt-work is pivoted an arm, Gr, connected in like manner with a bar, C, jointed at a. Centrally on har C is pivoted, at b, a rock-arm, D, whose ends el d rest against the protuding ends of lockbolts f f, which form a part of locks E E, of any suitable construction, attached at suitable distances apart to the safe doors.

The rock-arm D may be either made flexi- .ble to turn on the ivot b as in Fi .2 crit a l) a g 7 may be made stii', by screws or pins g g nserted in either side of the center, as in Eig. l.

In the former case, the bolt-work can-be thrown back if either lock is unlocked, irrespective of the other lock; and in the latter case, it will throw back only when bothlocks are unlocked.

The great advantage of this change is, that when desirable, the lock-work can be set so that, if one lock gets out of order, the other willunlock the bolt-work; or so that, if different persons hold the two keys of the locks set on diii'erent combinations, the bolt-Work cannot be opened till those two persons come together. This is of special valuein banks, where burglars sometimes force the single holder' of the combination to proceed to the bank and unlock the vault. It also prevents any one person from access to the safe, by forcing two robbery by either holder.

' Iam aware that two sets of lock-work have been before connected with one bolt, so that ifone set gets disarran ged the other will open locks to be unlocked to release the bolt; but in such cases theconnection between the locks and the bolt-work is not so constructed as to be convertible to the double function herein specified-that of releasing the bolt-work by the unlocking of either lock alone, or only by the unlocking of both together, as may be desirable.

consists in adapting the rock-arm D to either bolt-work is opened by one or two combinations, as before described.

Stops w w opposite the endsY of` the rockarm D are employed for the purpose of restoring the position of said arm when the boltwork is thrown out.

What I claim as my invention, and desire to secure by Letters Patent, is-

So connecting the heavy bolt-work of safedoors with the lock bolts, when two locks or sets ot' lock-work are employed, that the bolt-work may be set to open eiiher by the action of one lock or of both, by means of the lever C and rock-arm D, arranged and operating substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses. Y

JAMES SARGENT.

Witnesses H. S. GREENLEAF,

R. F. O seooD.

persons to meet to open it, and thus prevents and also in such a manner as to require both The paramount advantage of my invention the turning or the fixed position, whereby the 

